IP Header Checksum Bad

[rdherric@gmail.com]

Hello --

I have code that sends an SNMP packet using the Socket.SendTo method.
When we sniff the packets using Ethereal, the UDP header checksum
appears to be all right, but the IP header checksum is 0x0000. This
results in my SNMP packets being rejected at the server.

Does anybody know anything about why this could be happening?

Thank you --
Robert

[Vadym Stetsyak]

Re: IP Header Checksum Bad

Hello, rdherric@gmail. com!

Do you use raw sockets?

You wrote on 2 Nov 2006 12:54:10 -0800:


rI have code that sends an SNMP packet using the Socket.SendTo method.
rWhen we sniff the packets using Ethereal, the UDP header checksum
rappears to be all right, but the IP header checksum is 0x0000. This
rresults in my SNMP packets being rejected at the server.

rDoes anybody know anything about why this could be happening?

rThank you --
rRobert


--
With best regards, Vadym Stetsyak.
Blog: http://vadmyst.blogspot.com

[rdherric@gmail.com]

Re: IP Header Checksum Bad


Vadym Stetsyak wrote:

Do you use raw sockets?

No, we're using the standard System.Net.Sock ets.Socket object to
perform the communication.

Thanks --
Robert